Halo blight
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Pseudomonas | |
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Halo blight | |
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A bean leaf showing signs of halo blight | |
Scientific Classification | |
Kingdom: | Bacteria |
Phylum: | Proteobacteria |
Class: | Gamma Proteobacteria |
Order: | Pseudomonadales |
Family: | Pseudomonadaceae |
Genus: | Pseudomonas |
Species: | Pseudomonas amygdali |
Pathovar: | Pseudomonas amygdali pv. phaseolicola |
Halo blight (Pseudomonas amygdali pv. phaseolicola) is a bacterial blight disease in legumes. It causes small brown spots on the leaves with a light coloured edge.
Identifying Features[edit | edit source]
Small brown spots surrounded by a yello 'halo' appear on the leaves. Pods appear wet when they develop. Plant growth is stunted and suffer reduced crop yield. Attacks are worst during prolonged wet periods.
Treatment[edit | edit source]
Remove and destroy affected plants.
Prevention[edit | edit source]
Rotate crops each season. Never soak seeds before sowing.
Examples[edit | edit source]
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